Inside Back Cover: Multistate Circularly Polarized Luminescence Switching through Stimuli‐Induced Co‐Conformation Regulations of Pyrene‐Functionalized Topologically Chiral [2]Catenane (Angew. Chem. Int. Ed. 44/2022)

The precise co-conformation regulation of topologically chiral [2]catenanes under two different external stimuli led to the construction of a bidirectional circularly polarized luminescence (CPL) switch, as reported by Xiao He, Wei Wang, Hai-Bo Yang, and co-workers in their Research Article (e202210542). The results provide not only an attractive approach towards the construction of multistate CPL switches for practical uses but also a promising platform for the construction of novel chiral materials.